国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

China / Across America

Photon teleported to satellite by team in China

(China Daily USA) Updated: 2017-07-14 12:50

Researchers in China have teleported a photon from the ground to a satellite orbiting more than 310 miles above, Emerging Technology reports in MIT Technology Review.

The satellite, named Micius after the Zhou Dynasty (11th Century-221 BC) philosopher, was launched into orbit last year on a Long March 2D rocket from the Gobi Desert.

The Micius team announced on Monday it had successfully used a quantum network to teleport the first subatomic particle from the ground into orbit.

Quantum teleportation occurs when the complete properties of one object are instantly transferred to another at a removed location, in effect sharing the same existence.

"This second photon takes on the identity of the first," the paper explains. "To all intents and purposes, it becomes the first photon."

Albert Einstein called the theoretical process - quantum entanglement - "spooky action at a distance".

The technique has been proved in quantum physics labs since the 1990s, but this is the first time it has been carried out at such a vast distance. It shatters existing records.

"Previous teleportation experiments between distant locations were limited to a distance on the order of 100 kilometers, due to photon loss in optical fibers or terrestrial free-space channels," the team said.

Oxford University physicist Iam Walmsley told the BBC the achievement was a building block towards a number of potential applications.

"Everything from secure long-distance communications through perhaps eventually using it as part of a cloud-based computing network that allows you to send information from one party to another in a way that's secure and can't be tapped into without you knowing about it," Walmsley said.

"It's certainly a scientific breakthrough," he said.

"This work establishes the first ground-to-satellite up-link for faithful and ultra-long-distance quantum teleportation, an essential step toward global-scale quantum internet," the Micius team said.

MIT called the work impressive and said it set the stage for much more ambitious goals.

China Daily

Highlights
Hot Topics

...
勃利县| 丰宁| 大兴区| 房山区| 库尔勒市| 双柏县| 上思县| 化州市| 宁都县| 吕梁市| 凤冈县| 泰来县| 聂荣县| 灌云县| 剑川县| 葫芦岛市| 江达县| 长丰县| 紫阳县| 分宜县| 贡觉县| 彰武县| 赤壁市| 博湖县| 云和县| 宜章县| 东乡族自治县| 南川市| 天祝| 辉南县| 临颍县| 昭觉县| 陇南市| 太保市| 西青区| 建平县| 鸡东县| 繁昌县| 彭泽县| 临湘市| 洛宁县|